Spudding cushion for drilling machinery



Nov. 25, 1930. T. WILLIAMS 1,783,006

SPUDDING CUSHION FQR DRILLING MACHINERY Filed Dec. 9, 1929 INVENTOR. 72027705 M/Zzams v Patented Nov. 25,1930 p l 7 it i i a i UNITED STATES O FmE THOMAS WILLIAMS, oF- riri n A,- im1vs1is i i srunnino CUSHION non mainta ns iviAoninnnv yAp iJIication filed December meal- "se ri'arno. 4 2,7sfz.

My invention relates to improvements in driven bythe pulley '7} The pulley 7 receives 1 spudding cushions for "well drilling maits rotation by a belt driven as indicated at G, chinery. from a prime moverlocated in the housirigSL The object of my invention is to provide a a A mast 9 mounted (m ne frame at Dhas a cushioning device comprising a pair of semisheave l0 rotatablymountedat its upper ex- 5 elliptical springs in combination witha sheave tremity. v f *mounted on the walking beam of a certain Two semi-elliptical" leaf springs 11 are type of well drilling equipment to allow the positioned on a cross member 121 This cross use of wire line instead of rope in the drilling member is rigidly connected to the upper of a well. y side ofthe walking beam as indicated at 60 A still further object of my invention is to j One end of each of the springs is conprovide a resilient device for attachment to nected to a second cross meinbe-r lii which a the walking beam of certain types of well'is' rigidly positioned on the lower side of drilling equipment 'in which the resiliency the Walkingbeamas shownat FL A short is necessary for proper operation is obtained Shaft/1'45, carried by the other ends of the through the use of a plurality of semi-ellipsprings as atG, trunnions a sheave 15 mount tical leaf springs acting against the jerk of ed'between the springs. v Y Y the pitman on a wire line. A wire "line or cable 16 connected at one A still further object of my invention is end to a spool at Spasses over a sheave W17 20 to provide a cushioning device to be used carried by the frame 2, under the sheave 15 it for spudding with wire lines. on the springs and over the sheavelOtttthe A still further object of my invention is to top of the mast 9 and thence downward to provide a cushioning device of the kind dethevvell. i U r scribed in which the resiliency of a leaf type The drilling tools are suspended on the i spring absorbs the shock of the tools and other end of the-line 16which'isshowneniii permits the use of wire line. 1 teringthe hole as at HinF ig'; 1. p A still further object of my invention is w-Thejflspr'ngs 11 are position d lto eact to provide a device of thekind described to against thefaceof the sheavelfi on th'eline give the necessary whip to awire line when 16 as th w lki ab i roked q used on certain types of rigs for well drilling- The jar'ofthe tools is cushionetlby the s' d These and other objects will hereinafter be s rings andha whip i p d"i Qi e i more fully explained, reference being had to li h i i g it iai if t i nfla t that 1 f the A, the accompanying drawing, forming part of tretch f anila cable. 1 1 a this specification and w erein i e characters The device described permits the iise orf apply to like parts in the d fle e ew wire line; instead oi -manila; cable and great is Referring to the drawings: ly reduces the cost of drilling with regard Fig.1 is an elevation of a ,well drilling t 1mb1q 1 m t;

mach e illustr ingp i o Of the m The spu 'd'ding. action 'otthe'rig would be cushioning devlce on the walking beam. ry severe on itscomponent'partswhen wire A 49 Fig. 2 is'a plan view of thecushioning do line is used except for thecushioningaction vicepositioned on fragmentary portionsfof of the leaf springs the walking beam. 1 The advantagesof my cushioning device A walking beam comprising two beam for-spuddingherein described lie in, the re r to aframe 2 as indicated at A. I 1 operation with regard to the substitution of A pitman 3 connected at one end to the wire line for manila cable, the resiliency ime walkingbeam at and at'the other to parted to thewire line at the start as wellas l crank pin 4:, rocks the walking beam in vat the completion of'the work and the whip accordance with the rotation of the gear 5, action of theleafsprings. 1'

members 1 is pivotally mounted at one end ductionbf jar on the rig, the economy of a i The latter rotates vwith the gear 6 which is Such modifications may be usedfas lie i within the scope of the appended claims and what I claim as new and desire to secure by Letters Patent is:

1. In a cushioning device for use with wire line on well drilling equipment in combination with a walking beam of a rig, a plurality of leaf springs mounted at their center and one end on the walking beam, a sheave trunnioned at the other end of the said springs and bearing against a wire line.

2. In a spudding device to be used in connection with wire lines on drilling rigs, two semi-elliptical leaf springs, a sheave, cross members, the springs positioned on a walking beam by means of the cross members and the sheave rotatably positioned on the springs, and transmitting the motion of the walking beam to a cable.

3. In a device of the kind described to transmit the movement of a walking beam on a drilling rig to a wire line in a spudding operation, two resilient members positioned at their center on a walking beam, one end of each of the resilient members bearing against the walking beam and the other end of each of the resilient members bearing against a wire line, means to prevent wear on the wire line mounted at the last said end of each of the resilient members.

4:. In resilient members as connecting means between a spudding pulley and the walking beam of a drilling rig, two laminated springs mounted at their center on the walking beam and affixed at one end to the said beam, the other end of the said springs connected to a pulley, the retraction of the springs being toward the walking beam.

5. In a device of the kind described, a pair of laminated springs in combination with a spudding pulley and a walking beam, the springs fastened at one end and hearing at their center on the walking beam, the pulley rotatably mounted at their other end to provide the necessary whip to a wire line for spudding.

6. In a device to absorb the jar on a rig during spudding operations, in combination with the walking beam of the rig, a leaf spring and a sheave, the leaf spring mounted on the walking beam and the sheave mounted on the leaf spring, the said sheave bearing against a wire line and the said spring acting as cushioning means between the rig. and the tools.

In testimony whereof I affix my signature.

THOMAS WILLIAMS. 

